What Is Net 30 and Net 60? Discounts, Late Fees, and Credit

Net 30 and Net 60 payment terms both give a business buyer time to pay an invoice in full, with no interest, after the sale. The difference is the length of that window: Net 30 allows 30 calendar days; Net 60 allows 60. During that stretch, the seller is effectively financing the buyer at no cost, which is why the choice between them has real consequences for cash flow, pricing, and the relationship between the two companies.¹

What Net 30 and Net 60 Actually Mean

“Net” refers to the full amount owed after any returns or adjustments. The number is the payment deadline in calendar days. A Net 30 invoice dated June 1 is due by July 1. A Net 60 invoice dated June 1 is due by July 31.¹

Net 30 is the most common arrangement across service, retail, and wholesale industries. It gives sellers a reasonable collection window while leaving buyers enough time to process the invoice internally and often resell the goods before cash goes out. Net 60 shows up more often in sectors with longer production or sales cycles: manufacturing, seasonal wholesale, large construction supply orders. The slower the inventory moves, the stronger the case for the longer term.

Shorter and longer variants exist alongside the two standards. Net 15 fits quick-turnaround service work where the vendor wants fast payment. Net 45 splits the difference. Net 90 appears in international shipping and long-lead-time projects. Same logic, different number.

When the Payment Clock Starts

Whether 30 or 60 days is enough depends on when the countdown begins. Under the Uniform Commercial Code, the default rule depends on the sale: for standard transactions, payment is due when the buyer receives the goods; for credit shipments, the credit period starts from the time of shipment, though the seller can delay that start by post-dating or holding the invoice.²

Most businesses override that default with their own contract language. The three common triggers are the invoice date, the date the buyer receives the invoice, and the date the goods are delivered. The choice matters more than it looks. If a vendor mails an invoice three days after shipping and the contract uses the invoice date, those three days effectively come off the buyer’s window. A Net 30 with a delayed invoice can be tighter than a Net 60 keyed to delivery.

The parties should also define when a payment counts as “made.” Some agreements treat the postmark date on a mailed check as payment. Others require funds to land in the seller’s bank account by the deadline. A wire initiated on day 30 that clears on day 31 can trigger late penalties depending on the contract language. ACH transfers commonly take one to three business days, so buyers paying electronically near the deadline should build in that cushion.

Early Payment Discounts Change the Math

Many invoices include shorthand like “2/10 Net 30.” The first number is a percentage discount on the total; the second is the number of days the buyer has to claim it. In this example, paying within 10 days earns a 2% reduction; otherwise the full amount is due by day 30.¹

A 2% discount sounds small. The annualized math says otherwise. Skipping the discount under 2/10 Net 30 means borrowing the invoice amount for an extra 20 days at a cost of 2%. The formula: divide the discount by the amount paid without it (2% ÷ 98% = 0.0204), then multiply by the number of discount periods in a year (365 ÷ 20 = 18.25). That works out to roughly 36.7% annualized.

For most buyers with available cash or a line of credit priced well below that, taking the discount beats holding onto the money for the extra three weeks. A 2/10 Net 60 arrangement makes the comparison even more lopsided, because the “borrowing” period stretches to 50 days. The term on the invoice is only half the picture; the discount clause is often where the real money sits.

Cash Flow on Each Side of the Invoice

Moving from Net 30 to Net 60 doubles the time cash stays in the buyer’s account. That’s a direct working capital benefit, and it’s why buyers with tight liquidity push for the longer term. The seller feels the same extension in reverse: receivables stretch out, and the business is financing the buyer’s operations for free during the gap.¹

Which term you can actually get is driven by trade leverage: who needs the deal more and how replaceable the product or service is. A vendor selling something critical or unique holds more power than one selling a commodity. Scale matters, but it isn’t the only factor. For a seller worried about losing a buyer to a competitor offering Net 60, an early payment discount is often a more productive counter than digging in on 30 days. It gives the buyer a reason to pay fast while preserving the full window as an option.

What Happens When Payment Is Late

Once the deadline passes, the outstanding balance shifts from trade credit into a debt obligation. Most commercial contracts include a clause specifying interest on overdue amounts, commonly in the range of 1% to 1.5% per month, starting the day after the deadline and compounding against the remaining balance.

When a contract doesn’t specify, state law fills the gap. Statutory interest on commercial debts varies widely by jurisdiction, with some states as low as 6% annually and others as high as 15%. The applicable rate depends on whether the state applies its general legal rate, a separate commercial rate, or a judgment rate. Sellers who want predictability should write an explicit late-fee clause into the contract rather than rely on the default.

Federal contracts work differently. Businesses selling to federal agencies operate under the Prompt Payment Act, which requires the government to pay interest when it misses invoice deadlines. The Treasury Department sets the rate semiannually; for January through June 2026, it is 4.125%.³

How Net Terms Feed Business Credit

Payment behavior on Net 30 and Net 60 invoices feeds directly into business credit reports. The most widely used metric is the Dun & Bradstreet Paydex score, which runs from 0 to 100 and tracks how quickly a company pays relative to its agreed terms. A Paydex of 80 means payments generally arrive within terms. Above 80 means early; below 80 means progressively later.⁴

The score drops quickly past the deadline:

Score of 70: payments arriving about 15 days beyond terms
Score of 50: payments arriving 30 days beyond terms
Score of 40: payments arriving 60 days beyond terms
Score of 20: payments arriving 120 days or more beyond terms

Vendors check Paydex before extending credit. A score in the 40s or 50s can mean shorter payment windows, smaller credit limits, or a requirement to pay upfront on the next order. The practical takeaway: if you negotiate Net 60, pay inside Net 60. The scoring rewards paying within whatever term you agreed to, not whichever term happens to be shortest.⁴

Putting the Terms on the Invoice

The term printed on an invoice doesn’t carry much weight unless it’s backed by an underlying agreement. Before extending Net 30 or Net 60 credit, establish the terms in a written contract or purchase order that both parties sign. The invoice then functions as a reminder of an obligation that already exists, not the sole source of it.

At minimum, every invoice under Net terms should state:

The payment term, “Net 30” or “Net 60,” in a prominent location
The invoice date, which triggers the countdown
The exact due date spelled out as a calendar date, such as “Due by July 15, 2026”
The late payment consequence: the interest rate or flat fee that applies after the due date
Accepted payment methods, with account details for ACH or wire if applicable

Listing both the Net term and the calculated due date on the same invoice prevents a surprising number of disputes. Buyers processing dozens of invoices a week don’t always count calendar days, and a written-out date removes the arithmetic. It also closes any argument later about when the clock actually ran out.

1
J.P. Morgan. How Net Payment Terms Affect Working Capital
2
Cornell Law School. Uniform Commercial Code 2-310 – Open Time for Payment or Running of Credit; Authority to Ship Under Reservation
3
Bureau of the Fiscal Service. Prompt Payment
4
D&B (Dun & Bradstreet). Frequently Asked Questions